.header{
    background: #fff;
    width: 100%;
    height: 50px;
    position: fixed ;
    left: 0;
    top: 0;
    /* padding-top: 4px; */
}
.header_content{
    height: 100%;
    line-height: 50px;
    cursor: pointer;
}
.header_content ul{
    height: 100%;
}
.header_content ul li{
    height: 100%;
    padding: 0 12px;
    font-size: 15px;
}
.header_content li a{
    display: block;
    height: 100%;
    color: rgba(0,0,0,.8);
}
.header_content li a:hover{
    color: #32aaff;
}
.header_content .head_left span{
    display: inline-block;
    vertical-align: top;
}
.header_content>.head_left>li:nth-child(1) img{
    width: 32px;
    height: 32px;
    margin-top: calc((50px - 32px)/2);
    margin-right: 6px;
}
.header_content>.head_left>li:nth-child(2) img{
    width: 16px;
    height: 16px;
    margin-top: calc((50px - 16px)/2);
    margin-right: 6px;
}
.header_content>.head_right>li>input{
    width: 164px;
    height:32px;
    border-radius: 20px;
    background: url(../素材/头部/sousuo.svg) no-repeat right center/16px 16px;
    background-position: 138px;
    background-color: #f4f4f4;
    text-indent: 2em;
}
.header_content>.head_right li:nth-child(3) span:first-child{
    margin-right: 12px;
}
.header_content>.head_right li:nth-child(3) span:first-child{
    color: rgba(0,0,0,.8);
}
.header_content>.head_right li:nth-child(3) span:first-child:hover{
    color: #32aaff;
}



.header_content>.head_right li:nth-child(3) .login{
    /* 把标准盒子模型转换成IE盒子模型 */
    box-sizing: border-box;
    width: 820px;
    height: 440px;
    padding: 52px 65px 29px 92px;
    border-radius: 20px;
    background-color: #fff;
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    margin: auto;
    z-index: 999999;
    /* 先隐藏登录面板 */
    display: none;
}
.header_content>.head_right li:nth-child(3):hover .login{
    /* 鼠标移入 显示登录面板 */
    display: block;
}
.header_content>.head_right li:nth-child(3) .login .lg_top{
    text-align: center;
}
.header_content>.head_right li:nth-child(3) .login .lg_top>div:nth-child(1){
    width: 40%;
    height: 60px;
    line-height: 60px;
    font-size: 18px;
    color: #212121;
}
.header_content>.head_right li:nth-child(3) .login .lg_top>div:nth-child(2){
    width: 60%;
    height: 60px;
    line-height: 60px;
    font-size: 18px;
}
.header_content>.head_right li:nth-child(3) .login .lg_top>div:nth-child(2) .line{
    display: inline-block;
    width: 1px;
    height: 16px;
    background-color: #ccc;
    margin: 0 21px;
}
.header_content>.head_right li:nth-child(3) .login .lg_top>div:nth-child(2) .mima{
    color: #4fa5d9;
}
.header_content>.head_right li:nth-child(3) .login .lg_center{
    text-align: center;
}
.login .lg_center>div:nth-child(1){
    width: 30%;
    border-right: 1px solid #ccc;
    padding-right: 2px;
}
.login .lg_center>div:nth-child(1) p{
    line-height: 20px;
}
/* .login .lg_center>div:nth-child(1) p>a{
    font-size: 14px;
    text-decoration: none;
    line-height: 20px;
    color: #00a1d6;
} */
.login .lg_center>div:nth-child(2) {
    width: 60%;
}
.login .lg_center>div:nth-child(2) input{
    width: 400px;
    height: 44px;
    border: 1px solid #ccc;
    text-indent: 2em;
    border-radius: 8px;
}
.login .lg_center>div:nth-child(2) .btns{
    margin-top: 20px;
}
.login .lg_center>div:nth-child(2) .btns button{
    width: 48%;
    height: 40px;
    border: 1px solid #ccc;
    border-radius: 8px;
    background-color: #fff;
}
.login .lg_center>div:nth-child(2) .btns button:last-child{
    margin-left: 10px;
    background-color: #00a1d6;
    color: #fff;
}
.login .lg_center>div:nth-child(2) .others_way{
    margin-top: 16px;
    font-size: 13px;
    line-height: 16px;
    text-align: center;
    color: #999;
}
.login .lg_center>div:nth-child(2)>ul{
    width: 80%;
    margin: 0 auto;
}
.login .lg_center>div:nth-child(2)>ul>li{
    width: clac(100%/3 - 24px);
    text-align: center;
}
.login .lg_center>div:nth-child(2)>ul>li>a>img{
    width: 28px;
    height: 28px;
    vertical-align: middle;
}
.login .lg_center>div:nth-child(2)>ul>li>a>span{
    font-size: 12px;
}
.login .lg_bottom{
    margin-top: 20px;
}
.login .lg_bottom>p{
    line-height: 20px;
    text-align: center;
    color: #999;
    font-size: 12px;
}
.login::before,.login::after{
    position: absolute;
    bottom: 0;
    content: "";
    display: block;
    width: 120px;
    height: 100px;
}
.login::before{
    left: 0;
    background: url(../素材/头部/zuo.png) no-repeat center/100% 100%;
}
.login::after{
    right: 0;
    background: url(../素材/头部/you.png) no-repeat center/100% 100%;
    border-bottom-right-radius: 8px;
}



.banner{
    padding: 30px 0;
    background-color: rgb(214,214,209);
}
.banner_content ul li{
    height: 460px;
    text-align: center;
}
.banner_content ul li img{
    width: 100%;
    height: 100%;
}



.nav{
    padding: 26px 0;
    font-size: 16px;
    background-color: #212121;
}
.nav_content li {
    width: calc(1170px/15);
    text-align: center;
}
.nav_content li a{
    color: #fff;
}



